I also made a girl version (see here) along with a bunch of other holiday onesies.
It's really simple, especially if you own a Silhouette :)
so I used it again :)
A few pointers:
- Make sure to PRE-WASH your onesie/clothing item first
- Make sure to print your template out on normal paper first to confirm that you have the appropriate size/shape for the garment you are using.
- VERY IMPORTANT!! Make sure to MIRROR your image BEFORE you print the final image on your iron-on sheets. Otherwise everything will be backwards :/
All that's left is to iron it on
(to see where I've linked up - click here!!)